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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted ( in shares) | 0 | 0 | 0 | 0
Estimated total compensation expense | $ 19.0 |  | $ 19.0 |
Expiration period in years |  |  | 4 years |
Restricted Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted ( in shares) | 100,000 | 100,000 | 400,000 | 400,000
Granted, Units fair value | $ 0.7 | $ 0.8 | $ 5.9 | $ 3.7
Performance-based Restricted Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Granted ( in shares) |  |  | 300,000 | 400,000
Granted, Units fair value |  |  | $ 4.1 | $ 4.0
Service period in years |  |  | 3 years |

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. 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